I like this idea. Start the year with an empty jar and fill it with notes about good things that happen. Then, on New Years Eve, empty it and see what awesome stuff happened that year. Good way to keep things in perspective.
If your S/O is deployed and you don't get to talk to him often this would be a GREAT idea- When you make a memory that you wish you could've shared, or have something to tell him and don't wanna forget, WRITE it down!
Ultimate summer activities lists and bored Jar lists